<template>
    <div class="app-container">
        <!-- header 区域 -->
        <mt-header fixed title='项目作业'>
			<span slot="left" @click="goBack" v-show="flag">
				<mt-button icon='back'>返回</mt-button>
			</span>
		</mt-header>

        <!-- router-view 区域 -->
		<transition>
			<router-view></router-view>
		</transition>

        <!-- Tabbar 区域 -->
        <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item1" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item1" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item1" to="/shopcar">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart"><span class="mui-badge" id="badge">{{ this.$store.getters.getAllCount }}</span></span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item1" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>

    </div>
</template>

<script>
    export default {
		data(){
			return {
				flag:false
			}
		},
		created(){
			this.flag = (this.$route.path === '/home')?false:true
		},
		methods:{
			goBack(){
				this.$router.go(-1)
			}
		},
		watch:{
			'$route.path':function(newVal){
				if(newVal === '/home'){
					this.flag = false
				}else{
					this.flag = true
				}
			}
		}
	}
</script>

<style lang='scss' scoped>
	.mint-header{
		z-index: 99;
	}
    .app-container{
        padding-top:40px;
		padding-bottom:50px;
		overflow-x: hidden;
    }
	.v-enter{
		opacity:0;
		transform:translateX(100%);
	}
	.v-leave-to{
		opacity:0;
		transform:translateX(-100%);
		position:absolute;	/* 脱落文档流 */
	}
	.v-enter-active,
	.v-leave-active{
		transition: all 0.5s ease;
	}
</style>